>> mr. deong, would you address mr. simon's question of the tool that could have a discriminatory component. >> i want to add in there, thank you, matt, to add to what the district attorney is saying. we are currently evaluating our instrument and the half of dozen factors includes a current charge, felony, and the unemployed, drug abuse and having an opinion case. which i think is perhaps much different than say 10 years ago. and we are validating this information now in terms of comparing it to the mounds of data we have, if anything, any volunteer researchers out there. who want -- it really requires a lot of work and scrutiny.